The symbols, called STEMojis, have been designed by The Big Bang Fair, which encourages youngsters to study science, technology, engineering and mathematics.

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The list includes food “engineer” Heston Blumenthal, Professor Brian Cox, The IT Crowd’s Richard Ayoade and Gadget Show host Jason Bradbury as well as past and present Countdown numbers queens Rachel Riley and Carol Vorderman, and comic and maths whizz Dara O’Briain.

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Also there are bagless vacuum cleaner inventor James Dyson and scientists from history including physicist Isaac Newton, who discovered gravity.

“We hope these STEMojis will get young people talking about science and thinking about where their studies could lead them”

Paul Jackson, chief exec of EngineeringUK

Paul Jackson, chief exec of EngineeringUK which runs The Big Bang Fair, said: “We hope these STEMojis will get young people talking about science and thinking about where their studies could lead them.